Late fees because my agent didn't pay fees on time

I have an apartment in Perth which is managed by a property manager, including the payment of all bills in relation to the property.

The agent did not pay my quarterly strata levies on time (so they had to send a 2nd and 3rd notice out). It was only when the strata company emailed me directly that I realised the fees had not been paid.

They charged me $55 of fees (the levy itself is only $375). Now my question is... who is responsible to pay these late fees? Should it be paid by me, or my property manager?

My property manager says that she did not receive the original notice, or the subsequent 2. The strata company says they were definitely sent... and in the 2 years when I was paying the bills myself, I never had a problem with not receiving the levy notices.

You got off lightly. Many years ago my rates remained unpaid and the matter went to court without my knowledge with me receiving a default judgment against me. This remained on the credit report for 5 years.

I would say you have a strong case that the agent is liable (assuning they contracted with you to pay the rates). I nice letter should fix it up, if not moving to another agent should make them reconsider.